ergonomics analysis- ppt by-shibam sarbswa
DESCRIPTION
Ergonomics analysis-REBATRANSCRIPT
Ergonomics Analysis
A project report by : Shibam Sarbswa
Under the Mentorship of : Akash Joshi Deputy Manager
Maruti Suzuki India Limited
Ergonomics - Ergonomics means the natural laws governing human work
“ergon” = work“nomos” = natural laws
Ergonomics
ERGONOMICS
Why Ergonomics ?
Enhancing the certain human values including improved safety, reduced fatigue & reduced stress.
Less cases of unplanned absenteeism. Better employee morale leading to quality
improvement. Enhancing the efficiency and effectiveness
with which the work and other activities are carried out.
thetool
theworkstation
the task(job content & context)
theorganization
theenvironment
ERGONOMICS
Major organizations involved
The Institute of Ergonomics and Human Factors International Ergonomics Association (IEA) National Institute of Industrial Engineering
(NITIE) Operational Health & Safety Advisory services
(OHSAS), British National Institute for Occupational Safety &
Health (NIOSH), USA
Dispensary study
50 to 60 cases of muscular back pain is reported every month in our Dispensary.
Ergonomics Improvement
• The operator had to cover a larger distance to pick up door glass for YE3
• A platform has been provided in between with the door glasses of YE3 & YR9 placed on opposite sides now
AfterBeforePlatfor
m
6 Steps per Cycle Saved.
Benefits
5R
4L 6L
4R
5L
6R 5R
4L 6L
4R
5L
6R
Steering Column fitment
The operator has to Twist Stretch & Bend
Total Cycles/Shift – 400
Thus the operator has to repeat the Bend, twist, stretch activity 400 times a day.
Before:
No Twisting No
stretching Lesser
Bending
After:
Ergonomic evaluation of production lines is needed to identify such high fatigue areas.
Case Study - Rear Axle(K10)
Weight = 9kg Number of cars per shift = 350 (8 hour
shift) Number of lifts per minute = 350/(8 x
60)=0.729
Before
After
5
20
41
40
130
5Initial Condition Final
Condition
Posture Analysis
Body Postures
Neck Position
Trunk Position
Legs Position
Upper Arm
Position
Lower Arm
PositionWrist
Position
REBA-Rapid Entire Body AssessmentREBA Employee Assessment
Worksheet is used for calculating type of risk.
REBA
REBA Sheet helps in Identifying the Risk
Types of Risk
Negligible Risk • Score=1
Low risk • Score=2or3• change may be needed
Medium Risk
• Score=4 to 7• further investigation, change soon
High Risk
• Score=8 to 10• investigate and implement change
Very High Risk
• Score=11+• implement change
Fatigue prone activity using REBA
The assessment in case of REBA is done using the REBA sheet where we observe the posture and give the scores.
Based on the final score, the activity can be categorized.
Forceful exertion
Risk Factor: ERGONOMICS
Risk Factor: ERGONOMICS
Repetitive movement
Risk Factor: ERGONOMICS
Extreme range of motion
Risk Factor: ERGONOMICS
Awkward posture
UtilitiesOne Area one Improvement DriveErgonomic risk assessment of
stationsOperator step reduction ActivitiesInstallation of synchronic trolleysOperator cross movement reductionSequence supply of componentsMaterial Location ImprovementWork balancing.
Advantages of Ergonomics
Installation of synchronic trolleys Operator cross movement
reductionSequence supply of componentsMaterial Location ImprovementWork balancing
Benefits to the workers Enhanced worker motivation and job
satisfaction Added problem-solving capacity Greater acceptance of change Greater knowledge of work and
organization Reduces injuries and illnesses Improves employee morale and
productivity Reduces workers’ compensation costs
“I still need more healthy rest in order to work at my best.
My health is the main capital I have and I want to administer
it intelligently.”- Ernest HemmingwayNobel Prize winner for
literature
Thank you!!!!